高压比燃气轮机改造ORC的创新方案.pdfVIP

INNOVATIVE ORC SCHEMES FOR RETROFITTING ORC WITH HIGH PRESSURE RATIO GAS TURBINES Indian Institute of Technology Delhi India Vinayak .Hemadri P.M.V Subbarao 1 Contents:  Introduction  Description of combined cycle • Description of Toping Cycle • Description of ORC Bottoming Cycle  Integration of saturated ORC bottoming cycle with toping gas turbine cycle  Saturated R-245fa Bottoming Cycle in Conjunction with MM Bottoming Cycle  Multi pressure evaporation for ORC bottoming cycles  conclusions ASME ORC 2015 2 Introduction • Efficiency of power generating cycle improves, if the heat rejection occurs at lowest feasible temperature • Achieved by generating power in a combined cycle mode • Improving gas turbine efficiency does not necessarily improve the combined cycle efficiency • Tapping higher amounts of gas turbine exhaust thermal energy for power generation for high pressure ratio, recuperative gas turbine are feasible with organic working fluids. • Present research work aims at introduction of organic Rankine cycle (ORC) as a bottoming cycle in a conventional combined cycle unit • Commercially available gas turbine models like SGT200 (small capacity) and GE LM -6000 (medium capacity) have been considered for the toping cycle ASME ORC 2015 3 • Saturated Toluene, cyclopentane, butane, MM, MDM, MD M, D , D are 2 4 5 studied parametrically to understand energy recovery potential from the gas turbine exhaust • To avail the advantage of internal regeneration using IHE, another bottoming cycle in conjunction with MM bo